8Craig C L, Russell S J, Cameron ,et al. Foundations for joint action: Reducing physical inactivity [ M]. Ottawa, ON: Canadian Fitness and Lifestyle Research Institute. 1999.
9Scanlan, Tara K , Russell, et al. Project on Elite Athlete Commitment(PEAK): II. A Direct Test and Expansion of the Sport Commitment Model With Ehte Amateur Sportsmen, Journal of Sport &Exercise Psychology [ J ]. 2003,25 (3) : 377- 401.